Hot Spring 71827 | 65 sq ft Spa Filter Cartridge Brand_Hot Spring Available in two sizes —

Available in two sizes — a 1 pint bottle and a 1 quart bottle for owners who want a longer-lasting supply

designed for fill water with a calcium hardness reading between roughly 100 and 150 ppm

You'll still add dichlor or bromine as your primary sanitizer

P1000 Big E Home & Utility

Trichlor is acidic

Hot Spring 71827 | 65 sq ft Spa Filter Cartridge Brand_Hot Spring Available in two sizes —The Hot Spring 71827 filter cartridge is a factory original replacement delivering 65 square feet of filtration across 234 pleats. That combination gives you more efficient filtration and better water clarity so you spend less time cleaning and more time enjoying your hot tub. The filter is what stands between your water and everything bathers bring into it. Body oils, lotions, hair, and fine debris all have to come out, or they cloud the water, feed